Github user adityakishore commented on the issue: https://github.com/apache/drill/pull/443 The latest and hopefully the last version of the patch (c2d9959e07f47a09a4a11c250f84f4874b7e1db4), modified the GuavaPatcher in a way to make it non-catastrophic failure to not able to patch Guava. This allows the JDBC driver to not crash when starting Drill in embedded mode (mostly used in unit tests).
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